Dr. Grigor Grigoryan, MD
Contact & Location
Redlands, CA 92373
Dr. Grigor Grigoryan is a board-certified orthopedic surgeon practicing in Redlands, California. Dr. Grigoryan has performed 17 Medicare-verified knee replacements (#387 in California) and 16 hip replacements, for a combined total of 33 procedures.
In California, Dr. Grigoryan performs below average in knee (17 vs 47 avg), below average in hip (16 vs 41 avg).
Dr. Grigoryan's reported Medicare volume is split between knee replacements (17 cases) and hip replacements (16 cases).
Redlands is home to 5 orthopedic surgeons in the current Medicare dataset. Patients in the Redlands area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Grigoryan's Medicare data spans 4 years, beginning in 2018. Volume peaked at 69 procedures in 2019 before settling at 33 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Grigoryan's 17 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims represent approximately 33–37% of all joint replacements performed nationally (source: CMS data, AJRR). This range estimates the surgeon's total practice volume across all payers. The verified Medicare count above is the definitive, audited figure.
How Dr. Grigoryan Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Grigoryan's recorded volume peaked at 69 procedures in 2019 and stood at 33 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
Hospital Affiliations & Quality
Quality ratings and complication rates are hospital-level metrics from CMS Hospital Compare and do not reflect individual surgeon performance. Star ratings updated quarterly. Complication data covers a rolling 3-year period.
Patient Resources: Preparing for Knee Replacement
If you are considering knee replacement surgery, these evidence-based guides can help you prepare and recover:
An overview of current surgical approaches including robotic-assisted and minimally invasive techniques, implant options, and expected outcomes.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
Home Safety: Creating Your Recovery SanctuaryRoom-by-room modifications, equipment recommendations, and fall-prevention strategies to prepare your home for a safe post-surgical recovery.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
Knee Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after knee replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full knee replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Grigoryan
How does Dr. Grigoryan's procedure volume compare to other California surgeons?
Dr. Grigoryan has performed 33 Medicare-verified joint replacement procedures. The California average is 68 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Grigoryan ranks #377 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Grigoryan perform?
Dr. Grigoryan's Medicare data shows procedures in knee replacement (17 cases) and hip replacement (16 cases).
Are there other orthopedic surgeons near Dr. Grigoryan in Redlands?
Yes. There are 5 orthopedic surgeons in Redlands in the current Medicare dataset. Patients can compare procedure volumes and specializations to choose the surgeon who best fits their needs. Use the state page to view all California surgeons.
What does the Medicare data for Dr. Grigoryan represent?
The procedure counts shown are based on the most recent Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Grigoryan's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 33 procedures shown here.
Has Dr. Grigoryan's procedure volume changed over time?
Dr. Grigoryan's Medicare-recorded volume peaked at 69 procedures in 2019 and was 33 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.
Does Dr. Grigoryan perform more than one type of joint replacement?
Yes. Dr. Grigoryan's Medicare data shows procedures in knee replacement (17 cases), hip replacement (16 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Grigoryan affiliated with?
According to CMS facility affiliation data, Dr. Grigoryan is affiliated with Los Robles Hospital & Medical Center, Redlands Community Hospital.
How does Dr. Grigoryan compare to other orthopedic surgeons in Redlands?
Among the 5 orthopedic surgeons in Redlands, Dr. Grigoryan ranks #2 by total Medicare procedure volume. Dr. Grigoryan is among the highest-volume surgeons in Redlands.
What are the quality ratings for hospitals where Dr. Grigoryan practices?
Los Robles Hospital & Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Redlands Community Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Redlands, California
Dr. Grigoryan's 33 Medicare procedures are above the Redlands average of 29. The table below compares verified procedure volumes for orthopedic surgeons practicing in Redlands.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Peter Elsissy | 71 | Hip, Knee |
| Dr. Jason Chan | 14 | Knee |
| Dr. Zachary Hadley | 14 | Shoulder |
| Dr. James Stewart | 12 | Knee |
Patient Resources & Verification
Research reviews, verify credentials, and check official quality data through these trusted sources:
Medicare Care Compare and NPI Registry are official U.S. government sources. Google reviews reflect user-submitted feedback. OrthoProcedures.com does not verify the accuracy of third-party review content.